I would like to copy the reaction scheme similar to the image provided. This is what I have attempted so far, but I am new to chemfig so I'm not sure what I'm doing. Please provide your expertise. Thanks.image

\setcompoundsep{7em} % (not exactly) the length of the arrows


H \arrow(--HH){<=>[$K_{HH}$]}[90] HH \+ G \arrow(--GG){<=>[$K_{GG}$]}[-90]GG
\arrow{<=>[$K_{1}$]} HG
\arrow{<=>[$K_2$]} $HG_2$

1 Answer 1


You can use \subscheme like this:





enter image description here

  • perfect, thanks so much for your help. can i ask what the *{0} does? Aug 26, 2015 at 11:56
  • 1
    By default, each arrow label has the same orientation as the arrow. By using *{0}, the label is forced to be upright.
    – onewhaleid
    Aug 27, 2015 at 0:19

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